package com.swmansion.enriched.common

import com.facebook.react.bridge.ReadableMap
import com.facebook.react.uimanager.PixelUtil

internal const val ALLOW_FONT_SCALING_PROP = "allowFontScaling"

// Converts a logical font-unit value to pixels.
// Respects the system font scaling, depending on the `allowFontScaling` value
internal fun pixelFromSpOrDp(
  value: Float,
  allowFontScaling: Boolean,
): Float =
  if (allowFontScaling) {
    PixelUtil.toPixelFromSP(value)
  } else {
    PixelUtil.toPixelFromDIP(value)
  }

internal fun pixelFromSpOrDp(
  value: Double,
  allowFontScaling: Boolean,
): Float =
  if (allowFontScaling) {
    PixelUtil.toPixelFromSP(value)
  } else {
    PixelUtil.toPixelFromDIP(value)
  }

// Reads allowFontScaling from a serialized prop map (used in MeasurementStore
// where no view instance is available yet).
internal fun allowFontScalingFromProps(props: ReadableMap?): Boolean {
  if (props == null) return EnrichedConstants.ALLOW_FONT_SCALING_DEFAULT
  if (!props.hasKey(ALLOW_FONT_SCALING_PROP) || props.isNull(ALLOW_FONT_SCALING_PROP)) return EnrichedConstants.ALLOW_FONT_SCALING_DEFAULT
  return props.getBoolean(ALLOW_FONT_SCALING_PROP)
}